fwiw: following Vontar X4 specific sc2_s905x4_vontar_x4.dts seems to do well
(Makefile needs update as well)
#include "sc2_s905x4_4g_1gbit.dts"
/ {
model = "Vontar X4";
coreelec-dt-id = "sc2_s905x4_vontar_x4";
auge_sound {
avout_mute-gpios = <&gpio GPIOD_2 GPIO_ACTIVE_HIGH>;
aml-audio-card,dai-link@1 {
codec {
sound-dai = <&amlogic_codec>;
};
};
};
};